Morphology Data of Trimma christianeae
Identification keys
Main Ref. Allen, G.R., 2019
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors

Descriptive characteristics of juvenile and adult

Striking features
Body shape lateral elongated
Cross section oval
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales

This species is distinguished by the following combination of characters: D VI + I,9, with the second dorsal-fin spine usually with short filament, when adpressed extending to the base of first to fourth segmented dorsal-fin ray; A I,8; the fifth segmented pelvic-fin ray with sequential branching consisting of three branch points, its length 76.9-87.5% (mean 83.4%) length of fourth ray; the basal membrane of pelvic fin is fully developed; gill rakers on first arch 3-4 + 12-13; opercle scaleless; posterior naris is large and adnate to orbital rim. Colour in life mainly orange to brownish red with diffuse brown scale margins that form a reticulated pattern; indistinct narrow white or gray bars (sometimes branching) along back and dorsalmost part of caudal peduncle; the pectoral-fin base with distinctive orange to reddish-brown medial area with large white spots dorsally and ventrally (Ref. 119492).

Ease of Identification

Meristic characteristics of Trimma christianeae

Lateral Lines Interrupted: No
Scales on lateral line 23 - 23
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line
Scale rows below lateral line
Scales around caudal peduncle
Gill clefts (sharks/rays only)
Gill rakers
on lower limb 12 - 13
on upper limb 3 - 7


Dorsal fin(s)

Fins number 2
Finlets No. Dorsal   
Spines total 7 - 7
Soft-rays total 9 - 9
Adipose fin

Caudal fin


Anal fin(s)

Fins number 1
Spines total 1 - 1
Soft-rays total 8 - 8

Paired fins

Pectoral Attributes  
Spines     0
Soft-rays   16 - 17
Pelvics Attributes  
Spines     1
Soft-rays   5 - 5
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Capuli, Estelita Emily
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